https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98758

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[11 Regression] ice in      |[9/10/11 Regression] ice in
                   |lambda_matrix_right_hermite |lambda_matrix_right_hermite
                   |                            |by r9-3927
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-01-20

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
1c8badf66bec4e0ff73ae24bf4f8cabbef8c137a is the first bad commit
commit 1c8badf66bec4e0ff73ae24bf4f8cabbef8c137a
Author: Richard Biener <rguent...@suse.de>
Date:   Thu Nov 8 12:15:49 2018 +0000

    tree-data-ref.h (lambda_int): New typedef.

    2018-11-08  Richard Biener  <rguent...@suse.de>

            * tree-data-ref.h (lambda_int): New typedef.
            (lambda_vector_gcd): Adjust.
            (lambda_vector_new): Likewise.
            (lambda_matrix_new): Likewise.
            * tree-data-ref.c  (print_lambda_vector): Adjust.

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